1.The induction, purification, whole genome sequencing and comparative genome analysis of a novel staphylococcus haemolyticus bacteriophage IME-SA4
Ping LIU ; Fan PENG ; Qi HU ; YuLing TANG ; Huaixing KANG ; Yigang TONG
Journal of Chinese Physician 2018;20(4):546-550
Objective To induce a novel temperate bacteriophage from staphylococcus haemolyticus strain SA98,observe the morphology and size,complete the whole genome sequencing,analyse the structure of genome and evolutionary relationship.Methods The mitomycin C was used to induce the temperate phage from staphylococcushaemolyticus strain SA98,the induced phage was observed by transmission electron microscopy after be concentrated and purified.The genome DNA was extracted and high through sequenced.The feature of whole genome and evolutionary relationship was analyzed.Results A temperate phage IME-SA4 was successfully induced from staphylococcus haemolyticus strain SA98.Transmission electron microscopy analysis indicated that IME-SA4 had an isometric head and a non-contractile long tail.The whole genome of IME-SA4 was long as 41 843 bp,and the whole genome blast result indicated IME-SA4 shared only 13% homology with most related strain phiRS7.Conclusions A novel staphylococcus haemolyticus temperate phage with low homology with other staphylococcusphages was successfully induced from staphylococcus haemolyticus strain SA98.The research of its morphology,whole genome sequencing and comparative genome analysis make the foundation for further study of staphylococcus phages' properties and practical application.
2.Construction and application of an interhospital standardized transport scheme for patients supported by extracorporeal membrane oxygenation
Xiaojuan CHEN ; Wei ZHENG ; Fuhua LI ; Huili LYU ; Xiaojun LIU ; Lihua XING ; Shaoyan QI ; Feifei WANG ; Huaixing LIU ; Xiangke ZHAO
Chinese Journal of Modern Nursing 2022;28(16):2173-2177
Objective:To construct an inter-hospital standardized transport scheme for patients supported by extracorporeal membrane oxygenation (ECMO) combined with modified early warning score (MEWS) and the transport checklist based on the theory of process reengineering.Methods:Through literature review, according to the actual situation of the Second Affiliated Hospital of Zhengzhou University, the MEWS scores and transport verification sheets were effectively combined to construct the inter-hospital standardized transport scheme for patients supported by extracorporeal membrane oxygenation. And according to the inter-hospital standardized transport scheme, the medical staff in the transport team were trained and assessed for ECMO patient transport knowledge. Using the convenient sampling method, a total of 223 ECMO patients admitted to the Second Affiliated Hospital of Zhengzhou University from January to December 2019 who were transported by conventional transport were selected as the control group. A total of 222 ECMO patients who were transported by the ECMO interhospital standardized transport scheme from January to December 2020 were selected as the observation group. This study Compared the incidence of adverse transport events in the two groups of and the transport knowledge of medical staff in the transport group before and after training.Results:The score of transport knowledge of ECMO patients of medical staff after training were higher than those before training, and the difference was statistically significant ( P<0.01) . The incidence of transport adverse events in the observation group was lower than that in the control group, and the difference was statistically significant ( P<0.05) . Conclusions:The standardized inter-hospital transport scheme for ECMO patients can form an efficient and safe standardized transport process, reduce the incidence of adverse transport events and improve the transport safety of ECMO patients.